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| navigate by keyword : 1900s away bars beam blocks building casing coignet concrete construction coronet examples hennebique illustrations kahn monier patent present reinforcement reinforcing rods sectional set showing systems taken view vintage when wooden |
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| Concrete - examples of patent reinforcement bars, systems of reinforcement of Hennebique, Coignet, Kahn and Monier. Sectional view of a coronet beam. Concrete blocks showing reinforcing rods, when set the wooden casing is taken away. Construction / building of the 1900s to present. |
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